ECL, default scale, and preferred alignment entries

internal/project/project.go

@@ -215,6 +215,7 @@ type TopDataConfig struct {
 	PackageHAK       string                       `json:"package_hak" yaml:"package_hak"`
 	PackageTLK       string                       `json:"package_tlk" yaml:"package_tlk"`
 	ValueEncodings   []TopDataValueEncodingConfig `json:"value_encodings" yaml:"value_encodings"`
+	ValueDefaults    []TopDataValueDefaultConfig  `json:"value_defaults" yaml:"value_defaults"`
 	Wiki             TopDataWikiConfig            `json:"wiki" yaml:"wiki"`
 }
 
@@ -227,6 +228,12 @@ type TopDataValueEncodingConfig struct {
 	HexWidth int    `json:"hex_width" yaml:"hex_width"`
 }
 
+type TopDataValueDefaultConfig struct {
+	Dataset string `json:"dataset" yaml:"dataset"`
+	Column  string `json:"column" yaml:"column"`
+	Value   any    `json:"value" yaml:"value"`
+}
+
 type TopDataWikiConfig struct {
 	OutputRoot           string                         `json:"output_root" yaml:"output_root"`
 	PagesDir             string                         `json:"pages_dir" yaml:"pages_dir"`
@@ -570,6 +577,7 @@ func (p *Project) ValidateLayout() error {
 	failures = append(failures, validateRelativePath("outputs.hak_archive", effective.Outputs.HAKArchive)...)
 	failures = append(failures, validateGeneratedConfig(effective.Generated)...)
 	failures = append(failures, validateTopDataValueEncodings(effective.TopData.ValueEncodings)...)
+	failures = append(failures, validateTopDataValueDefaults(effective.TopData.ValueDefaults)...)
 	failures = append(failures, validateRelativePath("scripts.cache", effective.Scripts.Cache)...)
 	failures = append(failures, validateRelativePath("scripts.source_dir", effective.Scripts.SourceDir)...)
 	failures = append(failures, validateRelativePath("topdata.compiled_2da_dir", effective.TopData.Compiled2DADir)...)
@@ -722,7 +730,7 @@ func validateTopDataValueEncodings(encodings []TopDataValueEncodingConfig) []err
 			failures = append(failures, fmt.Errorf("%s.column is required", prefix))
 		}
 		switch strings.TrimSpace(encoding.Mode) {
-		case "packed_hex_list":
+		case "packed_hex_list", "alignment_hex_list":
 		default:
 			failures = append(failures, fmt.Errorf("%s.mode %q is not supported", prefix, encoding.Mode))
 		}
@@ -746,6 +754,28 @@ func validateTopDataValueEncodings(encodings []TopDataValueEncodingConfig) []err
 	return failures
 }
 
+func validateTopDataValueDefaults(defaults []TopDataValueDefaultConfig) []error {
+	failures := []error{}
+	seen := map[string]struct{}{}
+	for index, valueDefault := range defaults {
+		prefix := fmt.Sprintf("topdata.value_defaults[%d]", index)
+		dataset := strings.TrimSpace(valueDefault.Dataset)
+		column := strings.TrimSpace(valueDefault.Column)
+		if dataset == "" {
+			failures = append(failures, fmt.Errorf("%s.dataset is required", prefix))
+		}
+		if column == "" {
+			failures = append(failures, fmt.Errorf("%s.column is required", prefix))
+		}
+		key := filepath.ToSlash(dataset) + "\x00" + strings.ToLower(column)
+		if _, ok := seen[key]; ok {
+			failures = append(failures, fmt.Errorf("%s duplicates an earlier dataset/column default", prefix))
+		}
+		seen[key] = struct{}{}
+	}
+	return failures
+}
+
 func intPow(base, exponent int) int {
 	result := 1
 	for i := 0; i < exponent; i++ {